Check the listing for details. Korg microKORG 37-Key Digital Synth Keyboard Arpeggiator Vocoder MIDI AS IS. Condition: Used, Made in Japan. Listed at 249.99 USD. The Korg microKORG 37-Key Digital Synth Keyboard is a versatile instrument designed for musicians and producers. With its arpeggiator, vocoder, modulation wheel, and built-in effects, this synthesizer offers a wide range of creative possibilities. The digital design allows for easy programming and customization, while the MIDI inputs and outputs provide seamless connectivity for various devices. Perfect for live performances or studio recordings, the microKORG is a reliable choice for those seeking a compact and powerful keyboard synthesizer. Works great. Battery cover is missing. There are a few keys that are somewhat sticky when pressed. As-is only. No cords included. Tested with batteries in working condition.